Affordable Housing Project

Affordable Housing Project

Affordable Housing Project -NARSINGHPURA ,JAIPUR

Objective

  • To reduce the housing shortage in the State, especially in EWS/LIG categories.
  • To bring down the cost of EWS & LIG categories of houses to affordable limits.
  • To take up large scale construction of Affordable Housing (with focus on EWS & LIG housing.)
  • To involve Private developers in the construction of EWS/LIG categories of   houses by offering various attractive incentives.
  • To create Rental Housing as transit accommodation for migrants to urban areas.
    Affordable Housing Project

    Affordable Housing Project

Introduction

Project info-

Name of Work:-  Construction of EWS/LIG/MIG (G+3) flats at NARSINGHPURA,

AJMER ROAD JAIPUR

Date of commencement:-     07/01/2011

Date of completion:-              09/01/2013

Project cost:-                          14.30 Crores INR

Total No. of Flats:-                  432

Materials used at site & Testing

  1. i) Cement

Portland cement is composed of calcium silicates and aluminate and aluminoferrite.

The grades are-

  1. 33 grade
  2. 43 grade
  3. 53 grade

In “affordable housing project” 43 grade PPC cement is used.

Advantages of using Portland pozzolana

  • Contribute to strength, impermeability and sulphate resistance.
  • Contributes to workability, reduced bleeding and controls destructive expansion from alkali-aggregate reaction.
  • Reduces heat of hydration
  • Colour of PPC comes from the colour of the pozzolanic material used

Initial and final setting time of cement

  • Initial setting time-1/2 hr (30 mins)
  • Final setting time-10 hr

AGGREGATES

  • Black => very good quality
  • Blue => good
  • Whitish =>bad quality

Workability of Concrete

  • Workability is the property that determines the ease with which freshly mixed concrete can be placed and finished without segregation.
  • Workability is difficult to measure but ready-mix companies usually have experience in determining the proper mix.
  • Therefore, it is important to accurately describe what the concrete is to be used for, and how it will be placed.

SLUMP TEST OF WORKABILITY

  • Used for the measurement of a property of fresh concrete.
  • The test is an empirical test

Principle

The slump test result is a measure of the behavior of a compacted inverted cone of concrete under the action of gravity. It measures the consistency or the wetness of concrete.

Limitations of the slump test

  • Test fails to determine the difference in workability in stiff mixes which have zero slump, or for wet mixes that give a collapse slump.
  • It is limited to concrete formed of aggregates of less than 38 mm.

Compressive strength test

  • To determine the characteristic strength of the concrete
  • Very important to the acceptance of in-situ concrete work since it demonstrates the strength of the design mix.

 

  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •